TEST BANK FOR RADIOLOGIC SCIENCE FOR TECHN
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OLOGISTS 13TH EDITION BY BUSHONG AND SHIELDS
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p|ALL CHAPTERS | QUESTIONS & 100% VERIFIED ANS
p p p p p p p
WERS AND RATIONALES | GRADED A+
p p p p p
,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE p p p p p
1. Which of the following best describes the primary purpose of diagnostic r
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adiography?
A. To treat diseases using ionizing radiation
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B. To produce images of internal structures for diagnosis
p p p p p p p
C. To monitor patient vital signs
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D. To sterilize medical equipment
p p p
Answer: B p
Rationale: Diagnostic radiography’s main purpose is to produce images of internal b
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ody structures, allowing physicians to detect and diagnose abnormalities. Options A,
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C, and D are unrelated to diagnostic imaging.
p p p p p p p
2. What is the primary source of ionizing radiation in medical imaging?
p p p p p p p p p p
A. MRI scanner p
B. X-ray tube p
C. Ultrasound transducer p
D. PET scanner p
Answer: B p
Rationale: The X- p p
ray tube generates ionizing radiation used in diagnostic radiography. MRI and ultr
p p p p p p p p p p p
asound use non- p p
ionizing energy, while PET uses radioactive tracers rather than producing radiation
p p p p p p p p p p
pin a tube.
p p
3. How does the ALARA principle guide radiologic practice?
p p p p p p p
A. Maximizing image quality regardless of dose p p p p p
B. Minimizing radiation exposure while achieving diagnostic quality p p p p p p
C. Limiting patient interaction to reduce infection p p p p p
D. Increasing exposure time for better penetration p p p p p
Answer: B p
Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient and st
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aff receive the minimum radiation dose necessary for diagnostic-quality images.
p p p p p p p p p
,4. A radiologic technologist is preparing to image a patient with a suspected f
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racture. Which safety measure is most important?
p p p p p p
A. Using the fastest imaging speed
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B. Ensuring proper patient shielding and positioning
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C. Increasing exposure to reduce repeat images p p p p p
D. Allowing the patient to move during imaging p p p p p p
Answer: B p
Rationale: Proper shielding and positioning minimize unnecessary exposure and pro
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tect radiosensitive tissues. Options A, C, and D can increase radiation risk or degrade
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image quality. p
5. Scenario: A 45-year- p p
old patient expresses concern about radiation exposure. How should the technolo
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gist respond?
p
A. Ignore their concerns; radiation is safe
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B. Explain that dose is minimized and benefits outweigh risks
p p p p p p p p
C. Refuse to perform the exam p p p p
D. Increase exposure to ensure better images
p p p p p
Answer: B p
Rationale: Patients should be informed about the low dose and the diagnostic benef
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its, reducing anxiety and promoting informed consent.
p p p p p p
6. Which professional organization establishes standards for radiologic
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technologists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B p
Rationale: The American Society of Radiologic Technologists (ASRT) sets educatio
p p p p p p p p p
nal and professional standards. FDA regulates equipment, CDC focuses on infection co
p p p p p p p p p p p
ntrol, WHO on global health.
p p p p
, 7. Which imaging modality does not use ionizing radiation?
p p p p p p p
A. CT scan
p
B. MRI
C. X-ray
D. Fluoroscopy
Answer: B p
Rationale: MRI uses magnetic fields and radio waves, which are non-
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ionizing. CT, X-ray, and fluoroscopy all use ionizing radiation.
p p p p p p p p
8. What is the most radiosensitive tissue in the human body?
p p p p p p p p p
A. Muscle
B. Skin
C. Bone marrow
p
D. Cartilage
Answer: C p
Rationale: Bone marrow contains rapidly dividing cells, making it highly sensitive to
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ionizing radiation. Muscle, skin, and cartilage are less sensitive.
p p p p p p p p p
9. Which factor primarily affects the quality of an X-ray image?
p p p p p p p p p
A. Patient diet p
B. Tube voltage and current
p p p
C. Room temperature p
D. Technologist height p
Answer: B p
Rationale: Tube voltage (kVp) and current (mA) control X-
p p p p p p p p
ray energy and photon quantity, directly affecting image quality.
p p p p p p p p
10. How often should radiologic equipment be tested for quality assurance?
p p p p p p p p p
A. Daily
B. Monthly
C. Annually
D. Only when malfunction occurs
p p p
p p p p p p
OLOGISTS 13TH EDITION BY BUSHONG AND SHIELDS
p p p p p p
p|ALL CHAPTERS | QUESTIONS & 100% VERIFIED ANS
p p p p p p p
WERS AND RATIONALES | GRADED A+
p p p p p
,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE p p p p p
1. Which of the following best describes the primary purpose of diagnostic r
p p p p p p p p p p p
adiography?
A. To treat diseases using ionizing radiation
p p p p p
B. To produce images of internal structures for diagnosis
p p p p p p p
C. To monitor patient vital signs
p p p p
D. To sterilize medical equipment
p p p
Answer: B p
Rationale: Diagnostic radiography’s main purpose is to produce images of internal b
p p p p p p p p p p p
ody structures, allowing physicians to detect and diagnose abnormalities. Options A,
p p p p p p p p p p p
C, and D are unrelated to diagnostic imaging.
p p p p p p p
2. What is the primary source of ionizing radiation in medical imaging?
p p p p p p p p p p
A. MRI scanner p
B. X-ray tube p
C. Ultrasound transducer p
D. PET scanner p
Answer: B p
Rationale: The X- p p
ray tube generates ionizing radiation used in diagnostic radiography. MRI and ultr
p p p p p p p p p p p
asound use non- p p
ionizing energy, while PET uses radioactive tracers rather than producing radiation
p p p p p p p p p p
pin a tube.
p p
3. How does the ALARA principle guide radiologic practice?
p p p p p p p
A. Maximizing image quality regardless of dose p p p p p
B. Minimizing radiation exposure while achieving diagnostic quality p p p p p p
C. Limiting patient interaction to reduce infection p p p p p
D. Increasing exposure time for better penetration p p p p p
Answer: B p
Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient and st
p p p p p p p p p p
aff receive the minimum radiation dose necessary for diagnostic-quality images.
p p p p p p p p p
,4. A radiologic technologist is preparing to image a patient with a suspected f
p p p p p p p p p p p p
racture. Which safety measure is most important?
p p p p p p
A. Using the fastest imaging speed
p p p p
B. Ensuring proper patient shielding and positioning
p p p p p
C. Increasing exposure to reduce repeat images p p p p p
D. Allowing the patient to move during imaging p p p p p p
Answer: B p
Rationale: Proper shielding and positioning minimize unnecessary exposure and pro
p p p p p p p p p
tect radiosensitive tissues. Options A, C, and D can increase radiation risk or degrade
p p p p p p p p p p p p p p
image quality. p
5. Scenario: A 45-year- p p
old patient expresses concern about radiation exposure. How should the technolo
p p p p p p p p p p
gist respond?
p
A. Ignore their concerns; radiation is safe
p p p p p
B. Explain that dose is minimized and benefits outweigh risks
p p p p p p p p
C. Refuse to perform the exam p p p p
D. Increase exposure to ensure better images
p p p p p
Answer: B p
Rationale: Patients should be informed about the low dose and the diagnostic benef
p p p p p p p p p p p p
its, reducing anxiety and promoting informed consent.
p p p p p p
6. Which professional organization establishes standards for radiologic
p p p p p p p
technologists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B p
Rationale: The American Society of Radiologic Technologists (ASRT) sets educatio
p p p p p p p p p
nal and professional standards. FDA regulates equipment, CDC focuses on infection co
p p p p p p p p p p p
ntrol, WHO on global health.
p p p p
, 7. Which imaging modality does not use ionizing radiation?
p p p p p p p
A. CT scan
p
B. MRI
C. X-ray
D. Fluoroscopy
Answer: B p
Rationale: MRI uses magnetic fields and radio waves, which are non-
p p p p p p p p p p
ionizing. CT, X-ray, and fluoroscopy all use ionizing radiation.
p p p p p p p p
8. What is the most radiosensitive tissue in the human body?
p p p p p p p p p
A. Muscle
B. Skin
C. Bone marrow
p
D. Cartilage
Answer: C p
Rationale: Bone marrow contains rapidly dividing cells, making it highly sensitive to
p p p p p p p p p p p
ionizing radiation. Muscle, skin, and cartilage are less sensitive.
p p p p p p p p p
9. Which factor primarily affects the quality of an X-ray image?
p p p p p p p p p
A. Patient diet p
B. Tube voltage and current
p p p
C. Room temperature p
D. Technologist height p
Answer: B p
Rationale: Tube voltage (kVp) and current (mA) control X-
p p p p p p p p
ray energy and photon quantity, directly affecting image quality.
p p p p p p p p
10. How often should radiologic equipment be tested for quality assurance?
p p p p p p p p p
A. Daily
B. Monthly
C. Annually
D. Only when malfunction occurs
p p p
